Question, an iphone 4g was dropped, the screen was replaced which resulted in a white screen. Customer tried to software update the handset to 5.0.1 but still white as was told would be. Put a new screen which now works. The problem is now as I think some of you know of this bug / problem, the handset quite often go into "no service", tried to update to the latest 5.1 software and it last longer but still rotate from signal to no service. The handset was brought from Apple hence factory unlocked. Will try to do a network reset, but is there any other way to fix "no service" problem or is it not buggered and need to be exchange (no older firmware blog has been saved since the upgrade she done herself.) (Even had an older SHSH dont think will be of any use through since I was under the impression cant downgrade Iphone 4 below 5 once it gone up to 5?)
If anyone got any ideas I would be gateful.